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Showing results for tags 'algae'.
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I've got this big hash plate that I collected last year and I somehow didn't notice this thing poking out until now. It looks like an algae to me. Found in SW Wisconsin in the platteville formation.
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Hello everyone, I have posted about this fossil before but I was not able to get it Identified. I have decided to create a separate topic for it because I am quite interested in if this is really what I initially thought it was. The fossil is from Eifel (Middle Devonian) and on one side there are a bunch of Crinoids columnals, but upon flipping it over I noticed this darkened branching structure on the rock, to me it looked very reminiscent of certain algae, although I have never seen anything like that from the Devonian so it's probably something else. So my question is: Is this really a fossil of any kind? Or is this something else that I am misinterpreting?
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Hello Dear Friends! This is my first topic on this forum. Hooray! I work in museum and sometimes go on the Kaliningrad beach of Baltic sea and search some fossils. I'am not paleontologist and i need help to definition of them. THe last time i found some algae but i'am not sure. Place was in a few meters from cliff on beach. p.s. can i add my other find in this topic or should create new?
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Hello everyone, I found the below ichthyosaur vertebra on the beach at Wimereux two weeks ago. It had obviously been lying there for some time, as it was covered in green algae and barnacles. Based on the advise of various friends and the fact this rock seems to hard and massive to work through using just my Dremel, I'll be leaving the fossil in its matrix. However, I do want to clean it up from the algae and barnacles. As such, I used a 1:2 dilution of 14° household cleaning vinegar and a couple of sturdy brushes to remove most of the algae (dipping the brushes in the solution between brushings) and soaked it in soapy hot water. Areas with tougher algae were treated using the undiluted vinegar. Today removed the remaining barnacles using wooden toothpicks, following it with another soak in hot soapy water and another rinse. Although I think this got rid of all the barnacles, and the piece is no longer entirely coated in green algae, there are still various green spots on the rock (and a slight green sheen on the vertebra itself) that haven't come out with the treatment. (Also the "dead fish smell" still lingers) This makes me wonder about the following things: 1. Can the algae regrow, given enough light and moisture in the air? 2. Has anyone ever experienced algae spreading in their collection after failing to remove all traces of algae (I mean, fungi will spread between books and, as I understand, algae can transmit their spores by air)? 3. Is there a way I can get rid of the remaining algae on the rock? E.g. exposure to sun/UV light? 4. Is there a way something can be done about the slight lingering smell, or is this just something that needs to dissipate over time? Now I read some of you prefer using diluted bleach to remove algae growth from fossils (as mentioned in the post below), but I'm not sure I feel comfortable playing around with such aggressive agents yet...
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Anyone seen this species or similar? Found in Pennsylvanian spoil piles of central Illinois (near Peoria). Is it part of some kind of alga? Not my find and not my specimen, so these photos are basically what we have to go on. More broadly, can anyone here recommend a Treatise-style taxonomic book detailing known algal heads / macroalgae in the fossil record? Thanks.
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I have a few specimens that I recently collected from a river. The best are covered in dried algae that needs removal. Does anyone know how to remove the algae?
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I recently aquired this Glossopteris. It has a green coating which looks like algae. How do I remove this without damaging the fossil ?
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Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA- 5 replies
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Hi guys, I would like to know if you can recognize this algae fossil. It is Cenomanian in age and associated with microbialites. My first guess is cyanobacteria. Thanks!
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While hiking through a desert area just southwest of Tucson, AZ. I found these interesting layered rocks. Over the course of an afternoon I came across a couple more spots where these types rocks were strewn over relatively large areas. Many of the pieces would fit inside a square inch or the palm of your hand, while many others were a few feet long/wide. I showed these to a local geologist and he called them stromatolithic Paleozoic limestone – evidence the area was once covered by water and these represent the layers of algae, probably in the form of algal matting that existed there, dating back to the Paleozoic time period. Respectfully, can anyone confirm or negate this idea? Thank you for your time and consideration!
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I would highly appreciate your opinion about this formation . Marine , Pliocene or Pleistocene age, Greece . Could be algae , bryozoa ?
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I found this in my Seattle area yard, near the dead stump of a small maple. After washing and bleaching the septums appear filled with sand and shell bits. There is also something growing throughout it like a veinous system—likely plant? It is heavy. There are striated and mineralized layers. There is a ventricle feature and a faceted stem—it’s disturbingly brain-like. I feel honored to have finally guessed my way through your captcha (respect!)~~hoping someone can identify this oddity. Best guesses so far are coral or fungus, but I’ve not found any examples sporting this stem canal...
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Saw this at a rock shop. Reminds me of lichen. Thoughts?
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Hello again. I have several of these strange fossil discs. I cannot find tags for them in the boxes of minerals and fossils recently acquired. Possibly some sort of jellyfish? sea sponge? Any help with ID is of course always appreciated!
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Hello everyone, I had recievrd this as a part of set of many fossils a few years ago as a gif, it was labeled as an algae fossil and the piece is very interesting but I am not sure what it is and what the age could be, one side is very glossy while the other is partially so, the glossy side has very interesting coloration and I am unsure of what it could be a mineral or a part of the fossil, the other side has some staining which could also be the fossil I am really not sure but another very unique thing about this is that y the side of the rock has almost a fiberous look with lines running up the specimen. The ruler provided is in inches, Thank you very much.
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Fossil fats suggest animal life got started later than previously though
Oxytropidoceras posted a topic in Fossil News
Earliest animals developed later than assumed, Max Planck Society https://phys.org/news/2019-03-earliest-animals-assumed.html Fossil fats suggest animal life got started later than previously thought. New Atlas. Michael Irving, March 7th, 2019 https://newatlas.com/earliest-animals-evolved-later/58771/ Nettersheim, B.J., Brocks, J.J., Schwelm, A., Hope, J.M., Not, F., Lomas, M., Schmidt, C., Schiebel, R., Nowack, E.C., De Deckker, P. and Pawlowski, J., 2019. Putative sponge biomarkers in unicellular Rhizaria question an early rise of animals. Nature ecology & evolution, http://dx.doi.org/10.1038/s41559-019-0806-5 A related article: Fossil fats reveal how complex life kicked off after Snowball Earth phase. New Atlas. Michael Irving, January 31st, 2019 https://newatlas.com/fossil-fats-snowball-earth/58292/ yours, Paul H.- 7 replies
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a friend and I traveled to the florida barge canal on Saturday. it is a 4 hour trip for us. besides the usual finds, my friend found this, and we were wondering if it looks like algae to anyone else, besides us. lol. thanks. ( second photo is of my best finds of the day, still needing a final cleanup....also found a 4" sand dollar that broke getting it out of the bank....and a 5" thick, 6' long section of broken sand dollar edges all in hardened stone...ugh. )
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Georgia Conasauga Formation- More Than Just Trilobites
Nimravis posted a topic in General Fossil Discussion
At this Murray County location, trilobites are not the only thing that can be found. Last April, I contacted Dr. David Schwimmer, who is a Professor of Geology at Columbus State University in Georgia. Dr. Schwimmer has also published a couple papers on the fossils from the Conasauga Formation. I wanted to see if he could identify a small piece of matrix that contained something that I have not found before, or since. I was thinking that it was some type of algae, so I sent both halves of the fossil down to him so he could examine them and see if he could come up with an ID. Here are the two halves- A couple months later, I was contacted by Dr. Schwimmer and he provided the below response. "We put your anomalous specimen in the SEM (Scanning Electron Microscope) finally, and it turns out there was no image! That means it has no relief, its a color feature, almost certainly iron oxide colors. My interpretation is that it must be some sort of relict carbon-based plant material, which would suggest, as you first assumed, some sort of algae. Since there is no tissue I would rule out red algae, which usually have carbonate crusts, leaving a green alga as the likely source". I let him keep whatever piece that he wanted and he returned the other piece. Here are close ups of the piece that I have in my collection.
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I was just going through a handful of Pioche Shale (Early-Middle Cambrian, Nebraska Nevada) trilo plates I bought a while ago, and found this interesting piece. I'm leaning more towards algae than worms, as they are reminiscent of the carbon film preservation of algae from Cambrian formations in China. Any thoughts?
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Coralline red algae from the Silurian of Gotland is much older than previously thought
Kasia posted a topic in Fossil News
https://www.sciencedaily.com/releases/2019/01/190116111008.htm
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Hello all. I picked up this fossil in a Permian formation on the Potash Road, unpaved section, SW of Moab. I think I can eliminate what it is not but am unsure of what it is. I do not think it is some kind of sponge. It does seem to have the structure of coral. It does not it seem to be like any bryozoan clusters I’ve seen. If that is correct, this begins to narrow it to bacterial. The fossil material is very thin overlaying a hard red clay base, so I don’t think it is a stromatolite. It does not come in layers, but seems to be just one layer. The piece is 4cm x 4cm x 4cm. The fingers in the third picture give a good sense of scale. The most distinctive feature is the tooth like ridge just to the left of the red dot in the first picture. The second picture shows the thinness of the fossil level and the other pictures show the roughness of the surface. I wonder if it might be an algae mat of some sort. I looked at posts on the forum dealing with algae mats and similar and find things loosely similar but not conclusive to my untrained eyes. If it is an algae mat, it may be a fossilized cyanobacterial piece. At this point I’d like help just putting it into the broad category of what it is, which will direct further research. More pictures available if anyone wants. If you have ideas, thanks for sharing. And if they come with some reference source, even better. Thanks. Tom
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Kornei, K. (2018), Tiny algae may have prompted a mass extinction, Eos, 99, https://doi.org/10.1029/2018EO102539. Published on 11 July 2018. https://eos.org/articles/tiny-algae-may-have-prompted-a-mass-extinction https://eos.org/wp-content/uploads/2018/08/eos0918.pdf?x69145 https://eos.org/current-issues The paper is; Shen, J., Pearson, A., Henkes, G.A., Zhang, Y.G., Chen, K., Li, D., Wankel, S.D., Finney, S.C. and Shen, Y., 2018. Improved efficiency of the biological pump as a trigger for the Late Ordovician glaciation. Nature Geoscience, 11(7), p.510. https://www.nature.com/articles/s41561-018-0141-5 Yours, Paul H.
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Today I visited an island not far from Hong Kong, it was a stunning place with beautiful Geological rock segments. It had beautiful mountains and lovely nature and some of the best variety of corals. It is also the only place in Hong Kong that has fossils. I saw this today on the beach and it looks a lot like algae fossils, I know it is uncommon to find fossils there but is this really a algae fossil? Sorry for if the photos were not good enough.
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Hello, all. After my last wonderfully successful Id effort on here, i thought I'd try again. This specimen was boshed free of some matrix that was sent to me by the unrivalled Ralph @Nimravisin a batch of matrix from the Conasauga Formation, Upper Cambrian, Georgia, USA and home to a multitude of the trilobite Aphelaspis brachyphasis as well as rarer agnostids and other even rarer trilos. I was looking at this paper https://www.researchgate.net/publication/250083071_Exceptional_fossil_preservation_in_the_Conasauga_Formation_Cambrian_Northwestern_Georgia_USA and thought my specimen below looks rather like the example D in Figure 3 (sorry, I don't know how to just post that image. It's a chlorophyte, so is mine ? They appear to be sort of tiny strings of sausages, the longest string being about 2 mm long, so each individual 'cell' is very tiny indeed. Thank you for any comments, ideas or suggestions. Adam.
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I have a Tridenticeras peramplum ammonite steinkern from the Austin Chalk that has part of it incrusted with algae/moss from sitting in a small creek where I found it. What would be recommended to clean moss off of chalk fossils, not just ammonites? What ever the method that is recommended I would first try it out on a fossil-less chunk of chalk to make sure that the process wouldn’t be detrimental to the matrix. I also don’t want to scratch the fossil by scrubbing it with something overly abrasive since the matrix weakens when wet. I usually use a soft bristled toothbrush for cleaning dirt off of specimens. Would that enough? Thanks in advance!
